Machine for welding and shaping plowshares.



No. 633,921. Patented Sept. 26, I899.

G. S. STROH.

MACHINE FDR WELIIIIIG AND SHAPING PLOWSIIARES.

(Application filed Dec. 15, 1898.)

(In llode l.)

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PATENT OFFICE.

GILBERT s. STROM, or WHITE ROCK, MINNESOTA.

MACHINE FOR WELDING AND SHAPING PLOWSHARES.

SPECIFICATION forming part of Letters Patent No. 633,921, datedSeptember 26, 1899.

' Application filed December 15,1399. Serial No. 699,356. (in model.)

To all whom it puny concern." Be it known that I, GILBERT S. STROM,

citizen of the United States, residing at White Rock, in the county ofGoodhue and State of Minnesota, have invented new and usefulImprovements in Machines for folding and Shaping Plowshares, of whichthe'following is a. specification. r

This invention relates to machines for welding and shapingplowshares;and it has forv its object to provide a simple and efficient machine ofthe character described by means of which the plowshare may beaccurately, securely, and expeditiously welded to the landside and bywhich the plowshare may be shaped as desired without liability of indry. to the weld.

To these ends my invention consists in the features and in theconstruction, combination, and arrangement of parts hereinafterdescribed, and particularly pointedout in the claims following thedescription reference being had to the accompanying drawings, form ing apart of this specification, wherein Figure l is a perspective view of myimproved welding-machine. Fig. 2 is a top plan view thereof, partiallyin section; and Fig. 3 is a vertical sectional view.

Referring to the drawings, the numeral 1 indicates the bed or base ofthe machine. This bed may be secured to a bench, anvil, or the like byany suitable means, and,'as shown, has a perfectly fiat top to form astraight and level seat or support for the parts to be welded andshaped. Formed with or securedvto the bed 1 is a standard 2, which,

as showrnis arranged at an angle of about forty-five degrees to thelongitudinal axis of the bed. Formed on the opposite edge por tions ofthe inner'face of the standard 2 at a suitable distance above the bedare two lugs 3, the inner or adjacent facesof which are inwardly beveledor dovetailed, as indicated at 4. Arranged to slide vertically betweenthe lugs 3 is aplaten 5, which is beveled or dovetailed on its oppositeedges 6 to correspond to the dovetailed faces of the lugs between whichit slides. v Pivotedon the inner face of the standard 2 above the platen5 is a cam 7, having an eccentric curved portion 8 and a socket-arm 9,in which is adapted to be inserted a lever or handle 10. Formed on theinnerface of the earn 7 isa groove 11, that is curved to correspond tothe configuration of the edge or periphery of the eccentric portion 8 ofthe cam. A vertical groove 12 is formed on the face of the standardadjacent tothe cam, in which is arranged to move vertically a Ushapedlink 13, one end 14 of which is loosely fitted in the groove 11 in thecam and the other end 15 of which is fitted in a recess 16, formed inthe inner face of the platen 5. The'link thus formsaloose connectionbetween the cam and platen and operates to liftthe platen when the leveror handle 10 is raised. The bottom 17 of the platen 5 is curved, asshown, to correspond to the curvature of the front upper portion of theplowshare to be Welded'and shaped, and theupper edge of said platen isprovided with a shoulder 18, against which the cam 7 is adapted tooperate to depress the platen.

Adjustably arranged on the bed 1 of the machine is'an anvil 19, having astraight inclined forward edge 20 adjacent to and parallel with theinner face of the standard 2. The upper face'2l of the anvil 19 isslightly concaved and inclined downwardly and outwardly tocorrespond tothe shape of the under side of the plowshare, while the inclined orbeveled edge 20 ,thereof is adapted to fit the inner face of thelandside of the plowshare. The anvil is provided with two longitudinalslots 22, formed one in advance of the other, through which pass bolts23, or other suitable guides, that are fixed in the bed 1. V The anvil19 is thus free to be moved in a right line toward and from the standard'2, the arrangement being such that the inclined edge 20 of the anvil isalways parallel tothe inner'face of the standard. Pivoted to the bed 1in rear of the anvil 19 is a cam 2-1, provided with a peripheral flange25 and also provided with a socket 26, in which is adapted to be fitteda handle 27. On the rear end of the anvil 19 is formed adownwardly-projecting hooked lug or linger 28, that takes over or,overlapsthe peripheral flange 25 of the cam, as most clearly shown inFigs. 1 and 2 of the drawings. The edge or periphery of the cam is inoperative contact with the rear end of the anvil, and it will readily beunderstood that by turning the cam in the proper direction'the anvilwill be projected toward the standard with great force. By turning thecam in the reverse direction the flange 25 of the cam will rotativelyengage the finger 28 and retract the anvil.

Adjustably arranged on the bed 1 opposite the anvilisaclamp consistingof a hat metallic plate 29, the inner end of which is inwardly beveledor undercut, as at 30. The plate 29 is longitudinally slotted, as at 31,and passing through said slot and through the bed 1 is a bolt 32, overthe upper threaded end of which is fitted a washer 33 and nut 34, bymeans of which the plate is fixed in its adjusted position.

Theoperation of my improved machine is as follows: The plows-hare andits landside which are to be welded together are heated to the properheat for Welding, and the landside is then placed on the bed of themachine with its outer face resting against the inner face of thestandard 2. .Then by turning the cam 24 in the proper direction thelandside is forcibly'pressed against the face ofthe standard by thestraight inclined edge 20 of the anvil 19, thus pressing out the innerand outer faces or opposite sides of the landside perfectly straight.Theplowshare is then placed in position with its outer edge restingunder the undercut edge of the clamp 29, the latter having first beenadjusted and fixed in the proper position, and its inner and forwardedgeresting on the upper edge of the landside. The cam 7 is then turned bydepressing the lever l'O, thus forcing down the platen 5. As beforestated, the lower edge 17 of the platen is shaped to correspond to theconfiguration of the landside, and when the platen is forced down on theplowshare by the earn the plowshare and landside are pressed togetherwith great force and are held until they become thoroughly welded. Thesame pressure that operates to weld together the plowshare and landsidealso gives to the plowshareits proper curvature at its forward edge andpresses out the underside of the landside perfectly flat and level.l/Vith a hammer the plowshare may be then hammered out on the anviluntil it has been accurately shaped, after which the lever 10 is raised,thus lifting the platen, the cam 24 is turned to withdraw the anvil, andthe finished plowshare removed.

straight faces to the opposite sides of the landside. The cam forces theplaten down upon the plowshare with exceeding power, effecting a perfectweld, while the concaved and inclined upper face of the anvil affords afirm support for the plowshare, whereby the latter onal to the length ofthe bed, of an anvil adjustably arranged on the bed and adapted to bemoved toward and from the standard and having a straight edgesubstantially'parallel to the diagonal face of the standard, means forforcing said anvil toward the standard to press the landside between theadjacent faces ofthe anvil and standard, a platen arranged to movevertically in ways on the standard and having its lower edge'formed tocorrespond to the configuration of the plowshare, and a cam for forcingsaid platen down ward to press the edges of the plowshare and landsidetogether, substantially as described.

2. Ina machine for forming plowshares, the coinbihation with a bedhaving an upright standard provided with a vertical face diagonal to thelength of the bed, of an anvil adjustably arranged on the bed andadapted to be moved toward and from the standard and having a straightedge substantially parallel to the diagonal face of the standard, aplaten arranged to move vertically in ways on the standard, a campivoted to the standard above the platen and engaging the upper side ofthe latter, said cam having an eccentric groove formed on itsinnerface', and a U-shaped link vertically movable in a groove formed in thestandard and having one of its ends loosely fitted in the eccentricgroove in the cam and its opposite end fitted in a recess in the innerface of the platen, substantially as described. 3. In a machine forforming plowshares, the combination with a bed having an'uprightstandard provided with a vertical face diagonal to the length of thebed, of an anvil adjustably arranged on the bed and adapted to be movedtoward and from the standard and having -a straight edge substantiallyparallel to the diagonal face ofthe standard, said anvil having itsupper side shaped to correspond to the configuration of the plowshare,means for moving the anvil toward the standard, a platen arranged tomove vertically in ways on the standard, means for forcing the platendownward, and a laterally-adjustable clamp on the bed opposite theanvil, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

GILBERT S. STROM.

XVitnesses:

P. A. PETERSON, G. O. MILLER.

